Time to Knock Down 10pt in Auto

[Yan Wang]

Originally Posted by JosephM

IMHO, it dosn't matter. Unlike last year where to the top of the ramp ment points, I think speed to 10pt ball is useless. Life will not be easier if you get ther first or last.

Yar, our team got auto working the night before ship around 9:30pm... It took 10.5 seconds (after 3 trials). This was due to a little programming bug (robot turns around 360 in opposite direction instead of turning quickly towards the ball and was not at full speed in code). It should be down to < 7 seconds by regional since that'll be fixed. Regardless, speed doesn't seem very important.

[andy]

Hmm, If i had to guess, the fastest time we will see will be around 3 seconds. Maybe we will see high 2 seconds, MAYBE. But I seriously doubt it.

I figure that it is about 30 feet from the wall to the ball, if a fast robot travels at about 10 feet/second, we're looking at about 3 secs.

We max out at about 8-9 ft/sec so it would take us about 3.5 secs to knock the ball off.

Everything depends on the form of sensing, line trackers will take the longest at about 10-15 secs, IR tracking will be about 8-12 seconds, inertial guidance will take about 4-6 secs (depending on the skill of the programmers) that will be followed by dead reckoning and encoder based systems which I will predict will be the fastest. This is all of course dependant on the skillz of the programmers and the hardware design.

I would guess, that depending on practice and skill, encoder and inertial systems will be tied for the fastest systems. Combinations of those systems will also be in contention for the fastest.

If that is our autanamous stratagy...

Good Luck!!!

-Andy

[ngreen]

The ball is <24 feet. There are several robots that can go 15ft/sec +. So I expect to see several 2 seconds and possibly even a sub 2.

[KenWittlief]

2 seconds would really be impressive

not only being able to move that fast from a dead stop

but being able to track the ball position while moving that fast, stay on course

and detect precisely when to trigger whatever it is that knocks the ball off.

Sounds like a good basis for an unoffical team sponsored award - fastest time to release ball - the silver bullet award :^)

[Yan Wang]

So how fast does your team do it, Ken?

[KenWittlief]

Originally Posted by Yan Wang

So how fast does your team do it, Ken?

our carpet was a little short to have the right size on the field, so we never got an official time test

we will be there around 5 seconds - we are using the stock sprocket trannys this year - not real fast, but they do what we want.

[henryBsick]

As my good alumnist cliff put it, "we get there in 3.7 seconds only because we have to slow down to turn." From what you are all saying, it is pretty quick I guess.

[sanddrag]

About 3 seconds for us. Our carpet was slightely rougher than the FIRST carpet though and we will have to adjust the program a little.

[Matthew_H]

Originally Posted by sanddrag

About 3 seconds for us. Our carpet was slightely rougher than the FIRST carpet though and we will have to adjust the program a little.

Out of those who are knocking the 10pt ball of how many are knocking the ball out of play?

[Jonathan M.]

I'm not sure how fast ours can nock it off, but it's not slow. We're using the IR sensors, and we get it under 10 I believe. And that's only because we need to line up the arm with the ball. At the Upstate scrimmage we went to, 343 (Metal-In-Motion), had a great auton mode that worked really really quickly. I'm not sure what they used though.

[sanddrag]

Originally Posted by Matthew_H

Out of those who are knocking the 10pt ball of how many are knocking the ball out of play?

Yes, we only have the capability to knock it out of play.

[henryBsick]

Originally Posted by Matthew_H

Out of those who are knocking the 10pt ball of how many are knocking the ball out of play?

Out of play I think. We could hit it in if we wanted but, nah.

[The Lucas]

Around 3.2-3.5 sec at our home practice field. Never really tried in comp. We dont want to endanger the arm so we use a piece of fiberglass. It wacks the balls out of play, but who cares about those things anyway? The 10 pts in not worth the effort.

[Oode]

All I can say for sure is that it can be done in 2 sec or less. If you are at a reigonal with the KillerBees (team 33) you'll see it. If you want to know how, look for the recent thread on transmissions. A 4 speed autoshifter, combined with a straight line auto mode, and the balls are on the field before the starting music is finished.

As to why, there are many strategies that depend on ball control, and if you can get there first you get the control.

[nuggetsyl]

Originally Posted by ngreen

The ball is <24 feet. There are several robots that can go 15ft/sec +. So I expect to see several 2 seconds and possibly even a sub 2.

Is that 24 feet from start. Meaning one wheel over the line